(FILES)Facebook CEO Mark Zuckerberg delivers a keynote during the Facebook f8 Developer Conference at the San Francisco Design Center in San Francisco in this September 22, 2011 file photo in California. Facebook is poised to find out just how much Wall Street likes the world's number one social network. Facebook is expected to file paperwork towards a stock market launch this week, possibly as early as February 1, 2012, seeking to raise up to $10 billion on the advertising riches flowing from the personal data of its 800 million users. The flotation would be the largest ever by a technology company, eclipsing the $1.9 billion raised by Internet search giant Google when it went public in 2004 at a valuation of $23 billion. AFP PHOTO/Kimihiro Hoshino